DVD is increasingly showing a strain in providing HD content.

[WilliamWatts]

Im not seeing it personally. They can always span multiple discs and as such expand the available space if its really that much of a concern. If you're that anal about not changing discs then I suggest you either go PC or if you must have a console go Xbox 360 because you'll be able to download a significant number of titles and thus never have to get your ass up to change a disc. Im including changing discs between games as well because you never know when a bout of laziness may strike!